2021 Subaru Outback fuel/propulsion system problems

10 owner complaints filed with NHTSA name the fuel/propulsion system on the 2021 Subaru Outback — 3% of all complaints for this model year.

Fuel/propulsion System complaints

share of all complaints

—

median reported mileage

2 / 0

crash / fire reports

What owners report

“SUDDEN AACCELERATION: Cold started the car in garage, all OK. Then backed out and into turn around where I placed foot on the brake. At that moment suddenly accelerated and engine revved to 2000rpm (sounded like). I had to push down very hard on the brake pedal (where my foot already was) to stop…”
filed Sep 26, 2025
“ON thursday night at about [XXX] i was driving in the carpool lane going north.in the [XXX] , with full tank of gas ; suddenly i felt and here a noise, and the vehicle (2021outback base) start losing power, at the point that totally stop. call 911, and few minutes after the hway patrol came and…”
filed Aug 30, 2024

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This bulletin announces design changes made to the fuel injector in response to the DTCs listed. (This is an revised version of the original bulletin.)
09-81-21R · Service Bulletin/Repair Instructions · issued Jul 27, 2026
This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and…
09-74-21R · Service Bulletin/Repair Instructions · issued Jun 26, 2026
This bulletin announces design changes made to the fuel injector and fuel pipe in response to the DTCs listed DTC P030* / Engine Knocking / DTC P219C-D-E-F. (This is an revised version of the original bulletin.)
09-81-21R · Service Bulletin/Repair Instructions · issued Jun 25, 2026